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Author Topic: Sound Sync on "lazy 8" prints Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-07-2001 03:14 PM                     Does anyone have the info on the sync point on the horizontal optical and the horizontal mag vistavision prints and the sync for the horizontal mag technirama prints Also does any one have images of the MicroLambda lazy 8 projector or a copy of the article on it in the IP  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 01-11-2001 05:03 PM                     Although it can certainly be done, running optical playback off of a VistaVision print would bring in a whole new EQ need for the "A" chain, and you may possibly need a new slit lens to conform the eq("hinge") point to this higher linear film speed. The best way to do it would be to dub the track over on a re-recording stage to mag and really be able to listen to it critically and make the eq adjustments. You could also clean it up allot and get rid of some of the noise. If it is a Perspecta print then a Perspecta decoder could figure into this and you could make a really good sounding 3 channel mag(or DTS for that matter) and playback from that. Another option would be to use a SMPTE time code based DA-88 type digital recorder to dub over to and play back from. Mark  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-11-2001 09:28 PM                     The problem is archival playback of some existing prints. Also to do a transfer the sync pull up is still needed to be established to either prepare a timecode lock to a shaftencoder or the start mark on a mag  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 01-12-2001 11:06 AM                        Gordon: The original article by Century's Larry Davee had some photos and information about running optical sound, including the frequency response characteristics: http://www.widescreenmuseum.com/widescreen/vvproj.htm You supplied it to Marty Hart's American Widescreen Museum, so you have the original copy. Perhaps you could determine exactly how much the sound read point is ahead of the picture gate by finding a loud sound on the print soundtrack and finding the corresponding picture frame. Does the leader have a sync "pop" (beep)? ------------------ John P. Pytlak, Senior Technical Specialist Worldwide Technical Services, Entertainment Imaging Eastman Kodak Company Research Labs, Building 69, Room 7419 Rochester, New York, 14650-1922 USA Tel: 716-477-5325 Cell: 716-781-4036 Fax: 716-722-7243 E-Mail: john.pytlak@kodak.com  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 01-12-2001 07:34 PM                     Regretably the leaders have no sync pop on them (in fact the leaders are blank magstock with one frame scribed on  |  IP: Logged

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